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(TDAR CREEK A &SOCIATFS. Inc Page 11 Colowo Coal Company <br />2006 Phase 11 Evaluation (Updated Dec -10) <br />Chart 1 <br />Phase II - Reference Area Comparison <br />Average Ground Cover by Lifeform - 2006 <br />100% <br />90% <br />OBare Ground <br />Bow° <br />■ Rack <br />70% <br />■Litter <br />v <br />U <br />60 <br />III Noxious / Aggressive Weeds <br />OAnnuai & Biennial Fobs <br />e <br />50 °/° <br />❑Annual Grasses <br />c <br />40% <br />❑Shrubs, Cacti &Trees <br />a <br />30% <br />OPerennial Forbs <br />■Perennial Grasses <br />20% <br />10% <br />ow° <br />Phase 11 Mtn. Shrub RA Sagebrush RA <br />Chart 2 <br />Phase II - Reference Area Comparison <br />Relative Ground Cover (Composition) by Lifeform - 2006 <br />100% <br />90% <br />■Noxious/ Aggressive Weeds <br />300/0 <br />❑Annual &Biennial Fortis <br />`v <br />70% <br />OAnnual Grasses <br />t4 <br />60% <br />❑Shrubs, Cacti &Trees <br />c <br />❑Perennial (orbs <br />c <br />50 % <br />■Perennial Grasses <br />40% <br />} c <br />p <br />30wo <br />20% <br />10% <br />0% <br />Phase II Mtn. Shrub RA Sagebrush RA <br />(TDAR CREEK A &SOCIATFS. Inc Page 11 Colowo Coal Company <br />2006 Phase 11 Evaluation (Updated Dec -10) <br />